Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Using Analog Volt/Ohmmeter
1)Β Ground STI connector. Connect DVOM positive lead to SML terminal the self-test connector and negative lead to ground. See Figure .
2)Β Note output of the analog volt/ohmmeter as each switch is actuated. Record all tests results and proceed to SWITCH MONITOR TESTΒ .
| Switch | DVOM Indication | ||
|---|---|---|---|
| Clutch Engage or Neutral Gear Switch | 12 when in gear & clutch pedal released | ||
| Manual Lever Position Switch | 12 in "P" & "N" | ||
| Idle Switch | 12 volts with accelerator depressed | ||
| Brake On/Off Switch | 12 volts with brake pedal depressed | ||
| Headlight Switch | 12 volts with headlight switch on | ||
| Blower Motor Switch | 12 volts with blower switch at 2nd position | ||
| A/C Switch | 12 volts with A/C & switch blower on | ||
| Defrost Switch | 12 volts with defrost switch on | ||
| Coolant Temperature Switch | 12 volts with cooling fan on | ||
| Wide Open Throttle Switch | 12 volts with cooling fan on | ||
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Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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